I understand the concepts fine when it comes to determining the number of protons, neutrons, and electrons. However I just don't get the rounding part because it is weird.
Problem:
Determine the number of protons, neutrons, and electrons in a nickel 58 atom.
In the periodic table, it shows that Nickel has a mass of 58.7, however, the book solution rounds down Nickel's mass to 58, and uses that to determine the number of neutrons.
Book Explanation: Nickel has an atomic number of 28 and a mass number of 58. Nickel will have then 28 protons, 28 electrons or 30 neutrons.
If I would have done it: I will have rounded it up to 59, since periodic table shows Nickel at 58.7. Do I just round down for every element, even for an element such as Copper which has a mass of 58.9?
Monkeyvokes pointed out the obvious @@ This post is done.
Problem:
Determine the number of protons, neutrons, and electrons in a nickel 58 atom.
In the periodic table, it shows that Nickel has a mass of 58.7, however, the book solution rounds down Nickel's mass to 58, and uses that to determine the number of neutrons.
Book Explanation: Nickel has an atomic number of 28 and a mass number of 58. Nickel will have then 28 protons, 28 electrons or 30 neutrons.
If I would have done it: I will have rounded it up to 59, since periodic table shows Nickel at 58.7. Do I just round down for every element, even for an element such as Copper which has a mass of 58.9?
Monkeyvokes pointed out the obvious @@ This post is done.
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